JP2018077151A - 電力系統における対地静電容量の測定装置 - Google Patents
電力系統における対地静電容量の測定装置 Download PDFInfo
- Publication number
- JP2018077151A JP2018077151A JP2016219566A JP2016219566A JP2018077151A JP 2018077151 A JP2018077151 A JP 2018077151A JP 2016219566 A JP2016219566 A JP 2016219566A JP 2016219566 A JP2016219566 A JP 2016219566A JP 2018077151 A JP2018077151 A JP 2018077151A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- grounding
- grounding transformer
- switch
- tertiary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
13 接地変圧器
14 測定装置
15 スイッチ
R1 制限抵抗
R2 測定抵抗
Claims (2)
- 非接地系電路に接続された接地変圧器の三次側に制限抵抗を常時接続すると共に、前記接地変圧器の三次側に接続され、前記非接地系電路の対地静電容量を測定するためのスイッチおよび測定抵抗を具備した電力系統における対地静電容量の測定装置であって、
前記接地変圧器の三次側全体インピーダンスにより流れる電流よりも、前記測定抵抗に流れる電流が遅れ位相となることを加味して位相補正することにより、スイッチ投入前後の接地変圧器の一次側零相電圧の位相差に基づいて対地静電容量を算出することを特徴とする電力系統における対地静電容量の測定装置。 - 前記位相補正は、スイッチ投入前後の接地変圧器の三次側零相電圧の位相差から、スイッチ投入前後の接地変圧器の一次側零相電圧の位相差を算出する請求項1に記載の電力系統における対地静電容量の測定装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016219566A JP6559641B2 (ja) | 2016-11-10 | 2016-11-10 | 電力系統における対地静電容量の測定装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016219566A JP6559641B2 (ja) | 2016-11-10 | 2016-11-10 | 電力系統における対地静電容量の測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018077151A true JP2018077151A (ja) | 2018-05-17 |
JP6559641B2 JP6559641B2 (ja) | 2019-08-14 |
Family
ID=62150206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016219566A Active JP6559641B2 (ja) | 2016-11-10 | 2016-11-10 | 電力系統における対地静電容量の測定装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6559641B2 (ja) |
-
2016
- 2016-11-10 JP JP2016219566A patent/JP6559641B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP6559641B2 (ja) | 2019-08-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10530146B2 (en) | Differential protection method and differential protection device for performing a differential protection method | |
JP6616193B2 (ja) | 避雷器漏れ電流検出方法、避雷器漏れ電流検出装置、及び避雷器漏れ電流監視装置 | |
KR102460707B1 (ko) | 고장전류 방향판별 장치 및 그 방법 | |
WO2018167909A1 (ja) | 漏洩電流を検出する漏洩電流検出装置、方法およびプログラム | |
US9759761B2 (en) | Method and apparatus for monitoring capacitor bushings for a three-phase AC system | |
JP6328591B2 (ja) | 高圧絶縁監視方法および高圧絶縁監視装置 | |
US9316679B2 (en) | Method for locating of single-phase-to-ground faults of ungrounded power distribution systems | |
JP2007071774A (ja) | 絶縁測定方法及び装置 | |
JP2011058826A (ja) | 地絡電流検出方法及び検出装置 | |
CN105359365B (zh) | 用于高中压电力系统中的复杂、通用接地故障保护的方法和装置 | |
US10539596B2 (en) | Current sensor error compensation method | |
JP4993728B2 (ja) | 有効漏れ電流測定器 | |
JP5996709B1 (ja) | 高圧絶縁監視装置 | |
JP5020508B2 (ja) | 地絡方向検出装置 | |
JP5638289B2 (ja) | 電力系統における対地静電容量の測定装置 | |
CN105403808B (zh) | 一种直流线路接地故障点的定位方法及装置 | |
JP6289846B2 (ja) | 漏洩電流検出装置及び方法 | |
JP6559641B2 (ja) | 電力系統における対地静電容量の測定装置 | |
CN105548941A (zh) | 带校准功能的互感器校验仪 | |
US11177645B2 (en) | Systems and methods for improving restricted earth fault protection | |
JP6621515B1 (ja) | 対地静電容量測定装置および対地静電容量測定方法 | |
KR102015499B1 (ko) | 오차보정시스템 | |
JP6897933B2 (ja) | 高圧絶縁監視装置及び高圧絶縁監視方法 | |
JP2011064465A (ja) | 線路定数測定方法及び保護制御計測装置 | |
US10707677B2 (en) | Differential protection method and differential protection device for a transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190314 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20190314 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20190416 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190424 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190606 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20190701 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20190717 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6559641 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |